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Biology, 27.06.2019 17:00 tonehasarathi

How does a universal genetic code relate to the hypotheses about the origin of life on earth? how are self-replicating molecules, such as rna molecules in the “rna world” hypothesis, essential to the most popular hypotheses about the origin of life on earth? when scientists say this, they mean that all organisms have similar amino acids in their genetic sequence, up to a certain point. even though there are changes in their codes, they are similar to an extent. how might similarities and differences in genetic codes, or the proteins built as a result of these codes, be used to determine how closely related different species are? based on the amino acid sequence data for the cytochrome-c protein, chimpanzees and humans share an identical coding sequence. what other species identified on the chart has a coding sequence that is most closely related to the humans and chimpanzees and most distantly related? explain your answer.

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